CVE-2022-25492
📋 TL;DR
CVE-2022-25492 is a critical SQL injection vulnerability in HMS v1.0 that allows attackers to execute arbitrary SQL commands via the medicineid parameter in ajaxmedicine.php. This affects all users running the vulnerable HMS version, potentially leading to complete database compromise. Attackers can steal, modify, or delete sensitive medical data.
💻 Affected Systems
- HMS (Hospital Management System)
📦 What is this software?
Hospital Management System by Hospital Management System Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database takeover leading to exposure of all patient records, medical history, and administrative credentials; potential ransomware deployment; permanent data destruction.
Likely Case
Data exfiltration of sensitive patient information, credential theft, and unauthorized access to medical records.
If Mitigated
Limited impact with proper input validation and WAF rules blocking malicious SQL patterns.
🎯 Exploit Status
Simple SQL injection with publicly available proof-of-concept. No authentication required to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No official vendor advisory found
Restart Required: No
Instructions:
1. Review the GitHub discussion for community patches
2. Manually apply input validation and parameterized queries
3. Replace vulnerable ajaxmedicine.php with secure version
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to ensure medicineid parameter contains only expected values
# In ajaxmedicine.php, add: if(!is_numeric($_POST['medicineid'])) { die('Invalid input'); }
Web Application Firewall Rules
allDeploy WAF rules to block SQL injection patterns in medicineid parameter
# ModSecurity rule: SecRule ARGS:medicineid "@detectSQLi" "id:1001,phase:2,deny"
🧯 If You Can't Patch
- Isolate HMS system behind strict network segmentation with no internet access
- Implement database-level protections: restrict application database user permissions to SELECT only
🔍 How to Verify
Check if Vulnerable:
Test ajaxmedicine.php endpoint with SQL injection payloads like: medicineid=1' OR '1'='1Check Version:
Check HMS version in admin panel or review source code for version markersVerify Fix Applied:
Attempt SQL injection tests and verify they are blocked; check that parameterized queries are implemented in ajaxmedicine.php📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple rapid requests to ajaxmedicine.php with suspicious parameters
- Database queries containing UNION, SELECT, FROM in medicineid parameter
Network Indicators:
- HTTP POST requests to ajaxmedicine.php containing SQL keywords in parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND url="*ajaxmedicine.php*" AND (param="*UNION*" OR param="*SELECT*" OR param="*OR '1'='1*")